WTS: Unknown 7.5" upper with YHM quad rail & YHM Phantom suppressor mount. Includes charging handle but no sights or BCG. This is an old SBR upper of mine that ran great without issue. I ended up moving to 300BLK. $200 NOW $175 with free shipping. I don't frequent ARFCOM much anymore so please call/txt me for more info at 786-525-3024.